help help - my mac shuts down!

Discussion in 'Mac Basics and Help' started by ulla, Jun 12, 2007.

  1. ulla macrumors newbie

    Jun 12, 2007
    hi there

    I have a macbook pro which suddenly has begun shutting down without warning either just after the initial chime or shortly thereafter. it only happens when it's running on its battery - and happens even though there's still plenty of power left. I have tried starting it up again (on the battery) - but it just keeps on shutting down until I connect it to power.

    a friend of mine suggested it has something to do with "bios" - and that it's relativily simple to fix. and I would so love not to have to have it sent in to mac for repair and being without it for several weeks - so please, please - someone - what's happening - and can I fix it?
  2. jeremy.king macrumors 603


    Jul 23, 2002
    Fuquay Varina, NC
    There is no BIOS in Macs.

    I would suggest you do the following.

    1) Run Software Update to make sure everything is current, including Firmware.
    2) Reset SMC
    3) Call Applecare if steps 1 and 2 did not fix issue.

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